Jennifer Lopez vs. Steven Tyler! Who's Who?

Who's the bigger diva? Which wears feather earrings? Who cried over a contestant? See if you can tell the difference between the American Idol judges

Correct Answer: Steven Tyler

Though Lopez reportedly had a diva-tude during her American Idol negotiations, it's the rocker's unpredictable behavior that led to "loads of cancellations" for Aerosmith in 2009, according to guitarist Brad Whitford. "His behavior is spinning out of control," Whitford told PEOPLE, before ultimately patching things up with a rehabbed Tyler.